puncture needle
A puncture needle is a precision medical instrument designed for diagnostic and therapeutic procedures. This specialized tool features a hollow shaft with a precisely engineered tip, enabling healthcare professionals to access specific body areas with minimal invasiveness. Modern puncture needles incorporate advanced materials and innovative designs, including ultrasonic compatibility and echogenic tips for enhanced visibility during image-guided procedures. The needle's construction typically involves surgical-grade stainless steel, ensuring durability and biocompatibility. Available in various gauges and lengths, puncture needles serve diverse medical applications, from fluid collection to tissue sampling. They feature ergonomic handles for improved control and specialized tips for different tissue types. Safety mechanisms, such as automatic needle retraction systems and protective shields, protect both practitioners and patients. These needles often include depth markers for precise insertion control and may feature special coatings to reduce friction during insertion. Their versatility extends across multiple medical specialties, including radiology, oncology, and emergency medicine, making them essential tools in modern healthcare delivery.